The nurse is caring for a client newly diagnosed with hypertension and requires medication therapy. Which of the following medications below is considered a first line treatment for hypertension?

The correct answer, B: lisinopril, is considered a first-line treatment for hypertension due to its effectiveness in reducing blood pressure and its well-established safety profile. Lisinopril is an ACE inhibitor, which helps relax blood vessels and lower blood pressure. This medication is widely recommended by guidelines for initial treatment of hypertension. Carvedilol (A) is a beta-blocker, clonidine (C) is a centrally acting alpha-agonist, and doxazosin (D) is an alpha-blocker. These medications are not typically used as first-line treatments for hypertension and are often reserved for specific situations or as add-on therapy.